P4840P-4R-F57 WKP35S Wendeplatten - Walter Tools

The combination of a Tiger·tec Silver coating and the WKP35S carbide grade delivers durable, consistent cutting performance for demanding drilling and bore‑enlargement tasks; benefit from improved chip control and stable tool life to keep production running. Order the P4840P-4R-F57 WKP35S directly via Metav Werkzeuge or request advice from the specialists if needed.

P4840P-4R-F57 WKP35S drill/reamer indexable insert, Tiger·tec Silver, for steel and cast iron — Walter Tools

The P4840P-4R-F57 WKP35S is a coated carbide indexable insert engineered for drilling and bore‑enlargement operations, optimised for machining steel and cast iron in industrial CNC environments.

• Tiger·tec Silver coating technology
• WKP35S coated carbide grade
• Optimised chipformer 4R‑F57
• Suited for steel and cast iron

Reliable coating technology for long tool life and consistent results

The Tiger·tec Silver coating on this insert combines thermal stability and wear resistance to maintain cutting edge integrity under cyclic loads typical of drilling and reaming. As a coated carbide grade, WKP35S is formulated to withstand the heat and abrasive conditions encountered when machining P‑ and K‑group materials according to ISO 513; this translates into fewer tool changes and steadier batch quality. In practice, the coating reduces flank and crater wear, which supports predictable tool‑life planning and lowers the frequency of unplanned interruptions in production.

Geometry and chip management that improve surface finish and process security

The dedicated 4R‑F57 chipbreaker geometry is designed to control chip formation across a range of cutting conditions. For cast iron it promotes short, controlled chips; for many steels it helps form manageable curled chips, aiding evacuation from deep bores and reducing the risk of recutting. Enhanced chip control contributes directly to a better surface finish and lower cycle‑to‑cycle variability. The geometry also reduces cutting forces in many applications, which can extend the life of both the insert and the toolholder and increase overall process security in serial manufacturing.

Production benefits: integration, economy and predictable performance

Engineered for integration with common drill and boring toolholders, this indexable insert supports efficient inventory management and quick tool replacement in high‑volume shops. The combination of a modern coating and a robust grade delivers a balance between wear resistance and toughness that is favourable for mixed runs of steel and cast iron components. For production planners, the result is a reliable component that helps reduce rework and contributes to an improved parts‑per‑tool metric. Manufacturers requiring technical clarifications or application recommendations will find the product’s design aligns with standard CNC machining practices and can be specified into existing process sheets.

For technical application support or to secure the P4840P-4R-F57 WKP35S from Walter Tools, contact Metav Werkzeuge for tailored consultancy and prompt supply: info@metav-werkzeuge.com / +49 2822 7131930

Technical data

• Article number: P4840P-4R-F57-WKP35S-WALTER
• Label: Bohr-/Aufbohrwendeschneidplatte P4840P-4R-F57 WKP35S Walter Tools
• Product type: drill/reamer indexable insert
• Series: Tiger·tec Silver
• Grade: WKP35S
• Chipformer: 4R‑F57
• Material group: P / K
• Manufacturer: Walter Tools

Core data

• Applicable material groups: P (steel), K (cast iron)
• Coating technology: Tiger·tec Silver
• Carbide sort: coated carbide (WKP35S)
• Geometry designation: P4840P‑4R‑F57

Special features

• Improved thermal and wear resistance
• Optimised chip control for drilling and bore enlargement
• Suitable for industrial CNC production
• Designed for reliable repeatability in serial machining

FAQ

What materials can be machined with this insert?
The P4840P-4R-F57 WKP35S is suitable for steel (ISO group P) and cast iron (ISO group K), with the WKP35S grade tailored for these material groups.

How does the Tiger·tec Silver coating help in drilling applications?
The Tiger·tec Silver coating increases thermal stability and wear resistance, which helps maintain cutting performance during repeated drilling cycles and improves overall tool life.

What benefit does the 4R‑F57 chipbreaker provide?
The 4R‑F57 chipformer promotes controlled chip shapes across different alloys, aiding evacuation from deep holes and reducing risk of rework due to poor surface quality.

Is this insert compatible with standard drilling toolholders?
The insert is designed for use in common drill and bore tool assemblies; compatibility depends on the specific toolholder geometry and clamping system used in the machine setup.

Manufacturer/Responsible: AB Sandvik Coromant, Mossvägen 10, 811 34 Sandviken, Sweden; support.coromant@sandvik.com

Protected trademarks and trade names are the property of their respective owners. Brand names and registered trademarks are mentioned for explanatory purposes only; there is no affiliation between our company and the named brands. The presented article is original and factory‑new from the manufacturer Walter Tools. The Walter brand is used where applicable for product identification.